Thanks for the update. There still seems to be a problem with if you die and press the mouse button (to shoot) it can select an option from the menu that results in losing your checkpoint. Also, if you select "Main menu" it seems to crash instead of going to the menu.
The guards shooting at baddies may not be as helpful as I thought, since they are just as likely to hit me as the baddie :-).
EDIT: Also wanted to mention that at one point I jumped off the horse as he was going full speed and he kept going and ended up getting stuck in the wall. I got back on him but could not move. After dying he was by the checkpoint and I could ride him again.
Also forgot to mention that even before this update I did manage to "finish" the game but I was wondering what the aircraft at the extreme north was for, as I don't think I did anything with it (at least I can't recall doing anything). The guard said that they were awaiting my signal, but after doing what he said, did not remember seeing them do anything.
EDIT2: Also, I was unable to enter the building that is NE of the center of the map, I guess I am missing a key card or something? How do the key cards work? I currently have two of them.
One other thing, can you restrict the mouse pointer to the screen? It seems like the pointer goes beyond the edges of the screen and it can be difficult to make it come back on the screen.